【期刊论文】挤土效应机理及其防护措施研究

SichuanBuildingScience355200910:2008201225:(1960-),,,,,E-mail:[e-mail],,(,410076):,4,,:;;:TU473:A:1008-1933(2009)05-090-03Mechanismofsqueezingeffect,theoryanalysisandthemeasurestoreducesqueezingeffectHUANGDongsheng,LIHusheng,WANGChaosheng(ChangshaUniversityofScience&Engineering,Changsha410076,China)Abstract:Thispaperdiscussesthemechanismofsqueezingeffecttakingpilesfoundationengineeringinacertainresidentialbuildingconstructionasanexample.Reviewedarefourmethodsforthetheoryanalysisofthepenetrationofjacked2inpile,namely,cavityexpansionmethod,strainpathmethod,finiteelementmethod,sliplinemethod.Measurestoreducesqueezingeffectaresuggested.Keywords:prestressedtubularpile;squeezingeffect;softfoundation0,,,,,,,,,[2],,,,:(1),,,,,;(2),,,,,;(3),,,,;(4),,,,1,,,,,,,,,,,,,,,2070,,:09,,,,[7],,,,,,,,,,2,10511m2,,1,2810m2,8,7701m2,A,B,C(1):,,25m117111160m2154m,,,,,1015020130m,,,11502150m,01780137m(2)500AB2100,375,,,500AB2125,,,500AB2125316(3),:,1620m;()510m,89m;510m,;510m,(112m,2m)3,,,,,,,3.1,,,,,,3.2(1),,,(2),,1152m(3),,,3.3(1),,,2m,,,(2),,,2/3,2/3,,[6],192009No15,:40%50%,30%50%,23m,,,(3),,,3m,[1],,(4),,,:,,,,12d(5),,,,(6),,,,,30cm,,(7),,,,,,,,,,,,4,,,,,,,,,,,,,:[1],.PHC[J].,2006.[2].[M].:,2004.[3],.[J].,2002.[4],,.[J].(),2002.[5].[J].,2001,10(10).[6].[D].:,1999.[7],,,.[J].,1999,19(3).2935